Anatomy Nervous System
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Created by:
gillilande on March 27, 2012
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16 terms
Terms | Definitions |
|---|---|
 the inside of the neuron becomes positively charged | depolarization |
| the inside of the unstimulated neuron is negative; electrical charge is caused by the outward leak of potassium | resting membrane potential (RMP) |
| the depolarized neuron returns to the resting place | repolarization |
| the first phase of the action potential caused by an inward movement of sodium | depolarization |
| the changes in electrical charge across the membrane during depolarization and repolarization; also called the nerve impulse | action potential |
| the second phase of the action potential that is caused by the outward movement of potassium | repolarization |
| convolution located on the frontal lobe immediately anterior to the central sulcus | precentral gyrus |
| a bump or elevation on the surface of the cerebrum | gyrus |
| a shallow groove found on the surface of the brain | sulcus |
| a deep groove found on the surface of the brain | fissure |
| also called a convolution | gyrus |
| convolution that is located on the parietal lobe immediately posterior to the central sulcus | postcentral gyrus |
| sulcus that seperates the frontal lobe from the parietal lobes | central sulcus |
| groove that seperates the temporal lobe from the frontal and parietal lobes | lateral sulcus |
| deep groove that seperates the left and right hemispheres | longitudinal fissure |
| sulcus that seperates the primary motor cortex from the primary somatosensory cortex | central sulcus |
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